---
product_id: 328531139
title: "Armour Tire Insert – Puncture-Proof Bike Tube Protector for Gravel, Fat, and E-Bikes – No Flat Liner Stops Thorns, Goatheads & More"
brand: "tannus"
price: "₩220848"
currency: KRW
in_stock: true
reviews_count: 11
category: "Tannus"
url: https://www.desertcart.kr/products/328531139-armour-tire-insert-puncture-proof-bike-tube-protector-for-gravel
store_origin: KR
region: South Korea
---

# Improves ride comfort & handling vs solid rubber Quick 10-15 min installation Patented foam insert for puncture-proof protection Armour Tire Insert – Puncture-Proof Bike Tube Protector for Gravel, Fat, and E-Bikes – No Flat Liner Stops Thorns, Goatheads & More

**Brand:** tannus
**Price:** ₩220848
**Availability:** ✅ In Stock

## Summary

> 🛡️ Ride unstoppable—puncture-proof your adventure!

## Quick Answers

- **What is this?** Armour Tire Insert – Puncture-Proof Bike Tube Protector for Gravel, Fat, and E-Bikes – No Flat Liner Stops Thorns, Goatheads & More by tannus
- **How much does it cost?** ₩220848 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/328531139-armour-tire-insert-puncture-proof-bike-tube-protector-for-gravel)

## Best For

- tannus enthusiasts

## Why This Product

- Trusted tannus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Setup:** Install in just 10-15 minutes with clear embossed instructions—no mechanic needed.
- • **Ride Flat Fearlessly:** Convert your tires to run flat and never get stranded mid-ride.
- • **Comfort Meets Durability:** Foam insert enhances ride comfort while providing superior protection.
- • **Pro-Grade Puncture Defense:** Trusted by professional MTB teams to stop thorns, goatheads, and pinch flats.
- • **Optimized Fit for Peak Performance:** Trim-to-fit design ensures perfect sizing for smooth, responsive handling.

## Overview

The Tannus Armour Tire Insert is a patented foam liner designed to protect gravel, fat, and e-bike tires from flats caused by thorns, goatheads, and pinch punctures. Trusted by professional mountain bikers, it converts tires to run flat, improving ride comfort and handling compared to solid rubber alternatives. Easy to install in 10-15 minutes with embossed instructions, it offers a customizable fit by trimming for optimal performance and peace of mind on every ride.

## Description

desertcart.com : Tannus Armour Tire Insert – Puncture-Proof Bike Tube Protector for Gravel, Fat, and E-Bikes – No Flat Liner Stops Thorns, Goatheads & More : Sports & Outdoors

Review: Must have for e-bikes - This insert has performed very well in the month I’ve had it. In the 6 months I’ve had my bike I’ve had at least 7 flats and most were from little pieces of metal from the street cleaners bristles and small glass shards. All would barely break through the tire but with the weight on the back tire they’d cause a flat. Always the back; insert angry face!! The second day it was in I pulled a staple that went straight into the tire out and the day after that a 3/4” finishing nail that went in at a slight angle. Neither punctured the tube and what I would’ve spent on replacement tubes has already covered a decent portion of the cost of this. I can still find glass shards and fine metal pieces but I’ve stopped even looking after seeing it take the nail and not go flat. I’ve seen reviews about this not having instructions and that’s wrong. They’re literally embossed on the side of the insert. It’s a few simple steps; deflate tube, clean insert, put insert into tire, tire on bike, re-inflate. But honestly if you need more that that you probably shouldn’t be working on your own bike imho. The only thing that wasn’t stated was that you may have to trim this if your size falls within a range like mine 3-4” insert for a 3” tire, but that’s kinda common sense and if you held the insert against your tire without trimming you’d see it’s way over sized. For this I put the whole insert into the tire, traced where it touched the edge of the tire and then cut 1/8” inside that line to give the tire bead space to seat in the rim. Like magic the amount I cut off was very close to 1” Lastly I’d like to point out something about sizing. The 20x3” tube I first put on which is my bikes size was too big. I felt this as I put it on. There’s just too much rubber when this insert takes up 1/3 of the space in the tire. I did my best to stretch it out and have it fit smoothly in the tire but there seemed to always be a spot it bunched. Plus I couldn’t really pump more than 20psi into the tire despite the bike calling for a min of 24. I should’ve trusted my instincts but recall reading another review saying someone was a clown for saying you need to size the tube down. Well last week I got a flat, was still able to ride to a safe place to change as the insert doesn’t put your rim on the road and the flat was caused by a small pinch in the tube. Not even against the rim just a tiny fold in the center of the tube where it sat in the insert. I got the next partial size tube smaller; 2.75-3.3” and it fits much better and took the correct psi.
Review: Must Have - My son has gotten so many flats on his e-bikes. This is an excellent device that reduces punctures. I wish I had purchased and installed after the first flat! This is a must have for e-bikes. If you are about to fix a flat on your e-bike, install one of these!

## Features

- STOP BUYING & PATCHING TUBES: Our patented foam insert is engineered to stop punctures while improving the comfort of your ride.
- TRUSTED BY PROS: Professional MTB teams use Tannus Armour to ride harder without fear of pinch flats or thorn punctures.
- NEVER GET STRANDED: Our inserts convert your tires to run flat so you can finish your ride regardless of having air in your tube.
- BETTER HANDLING THAN SOLID RUBBER: Our armour IMPROVES your ride handling unlike solid rubber tyre replacements.
- FAST, EASY INSTALL: Average installation time is 10-15 minutes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08P3TTLHR |
| Best Sellers Rank | #29,497 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #44 in Bike Tires |
| Bike Type | Mountain Bike, Road Bike |
| Brand | Tannus |
| Brand Name | Tannus |
| Customer Reviews | 4.2 4.2 out of 5 stars (695) |
| Date First Available | December 2, 2020 |
| Included Components | Instructions |
| Item Diameter | 26 Inches |
| Item Dimensions LxWxH | 26 x 4.8 x 26 inches |
| Item Package Dimensions L x W x H | 18 x 10.5 x 5.5 inches |
| Item Width | 4.8 Inches |
| Manufacturer | Tannus |
| Material | Foam |
| Model Name | Tannus ARMOUR Insert |
| Package Weight | 0.66 Kilograms |
| Part Number | TA Insert |
| Size | 26" x 4.0-4.8" |
| Suggested Users | unisex-adult |
| Tire Type | Tubeless |
| Warranty Type | Limited |

## Product Details

- **Bike Type:** Mountain Bike, Road Bike
- **Brand:** Tannus
- **Item Diameter:** 26 Inches
- **Item Width:** 4.8 Inches
- **Manufacturer:** Tannus
- **Material:** Foam
- **Size:** 26" x 4.0-4.8"
- **Tire Type:** Tubeless
- **Warranty Type:** Limited

## Images

![Armour Tire Insert – Puncture-Proof Bike Tube Protector for Gravel, Fat, and E-Bikes – No Flat Liner Stops Thorns, Goatheads & More - Image 1](https://m.media-amazon.com/images/I/513JWzklj0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Must have for e-bikes
*by M***L on April 18, 2024*

This insert has performed very well in the month I’ve had it. In the 6 months I’ve had my bike I’ve had at least 7 flats and most were from little pieces of metal from the street cleaners bristles and small glass shards. All would barely break through the tire but with the weight on the back tire they’d cause a flat. Always the back; insert angry face!! The second day it was in I pulled a staple that went straight into the tire out and the day after that a 3/4” finishing nail that went in at a slight angle. Neither punctured the tube and what I would’ve spent on replacement tubes has already covered a decent portion of the cost of this. I can still find glass shards and fine metal pieces but I’ve stopped even looking after seeing it take the nail and not go flat. I’ve seen reviews about this not having instructions and that’s wrong. They’re literally embossed on the side of the insert. It’s a few simple steps; deflate tube, clean insert, put insert into tire, tire on bike, re-inflate. But honestly if you need more that that you probably shouldn’t be working on your own bike imho. The only thing that wasn’t stated was that you may have to trim this if your size falls within a range like mine 3-4” insert for a 3” tire, but that’s kinda common sense and if you held the insert against your tire without trimming you’d see it’s way over sized. For this I put the whole insert into the tire, traced where it touched the edge of the tire and then cut 1/8” inside that line to give the tire bead space to seat in the rim. Like magic the amount I cut off was very close to 1” Lastly I’d like to point out something about sizing. The 20x3” tube I first put on which is my bikes size was too big. I felt this as I put it on. There’s just too much rubber when this insert takes up 1/3 of the space in the tire. I did my best to stretch it out and have it fit smoothly in the tire but there seemed to always be a spot it bunched. Plus I couldn’t really pump more than 20psi into the tire despite the bike calling for a min of 24. I should’ve trusted my instincts but recall reading another review saying someone was a clown for saying you need to size the tube down. Well last week I got a flat, was still able to ride to a safe place to change as the insert doesn’t put your rim on the road and the flat was caused by a small pinch in the tube. Not even against the rim just a tiny fold in the center of the tube where it sat in the insert. I got the next partial size tube smaller; 2.75-3.3” and it fits much better and took the correct psi.

### ⭐⭐⭐⭐⭐ Must Have
*by C***Y on December 18, 2025*

My son has gotten so many flats on his e-bikes. This is an excellent device that reduces punctures. I wish I had purchased and installed after the first flat! This is a must have for e-bikes. If you are about to fix a flat on your e-bike, install one of these!

### ⭐⭐⭐⭐⭐ If you hate flats this is the best option out there.
*by B***1 on August 30, 2025*

Second one I’d bought for different bikes. Both over a year now. No flats and tires hardly ever go low. Not easy to install. But with patience it went well. Ready to buy another for the front tires now. If you hate flats. This is the best option out there.

## Frequently Bought Together

- Tannus Armour Tire Insert, No Flat Bike Tire Liner, Puncture Proof Bicycle Tube Protector, Stops Flats from Thorns and Goatheads Compatible with E-Bikes, Mountain Bikes, and More
- Ultraverse 20x4.0, 26x4.0, 20x3.0, 26x3.0 Inner Tube Set with Schrader Valve-Ideal for Mountain Bikes & E-Bikes with 20/26-Inch Fat Tires-Durable & Reliable Performance 2 Pack with Tire Levers

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-27*